Possumneck-Carmack W/A, MS
Lead detected, under the action levels
Latest 90th-percentile lead: 1.3 ppb (monitoring period 2023-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About Possumneck-Carmack W/A
Possumneck-Carmack W/A serves about 1,214 people through 460 service connections, which makes it a small system under EPA's size classes. It is under mixed public and private ownership and draws groundwater, in Attala County, Mississippi. EPA system ID: MS0040008. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
Against the period ending 2022 (1.1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Possumneck-Carmack W/A is 1.3 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.3 ppb |
| 2022 | 1.1 ppb |
| 2019 | 1.2 ppb |
| 2017 | 1.2 ppb |
How Possumneck-Carmack W/A compares
Of the 973 Mississippi systems with a lead result, the median latest reading is 1 ppb; 9 are over 15 ppb right now and 44 have gone over at some point. Possumneck-Carmack W/A's 1.3 ppb sits at the 62nd percentile in Mississippi and the 60th nationally (higher means more lead).
Nearby utilities
13 other systems share Attala County; 2 of them have a higher latest lead result than Possumneck-Carmack W/A. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| City Of Kosciusko | 9,646 | 0.6 ppb |
| Town Of Sallis | 2,785 | 1.2 ppb |
| Ethel Rural Water Association | 1,544 | 1.9 ppb |
| Conehoma Water Assn #2 | 1,500 | 0.7 ppb |
| Conehoma Water Assn #1 | 1,495 | 0 (not detected) |
| Mississippi Water Company | 785 | 0.6 ppb |
| Mcadams Water Association | 708 | 1.1 ppb |
| Town Of Mccool | 652 | 7 ppb |
| Town Of Ethel | 486 | 0.5 ppb |
| Sugar Creek Water Association | 405 | 0 (not detected) |
Your move
Test your own tap with a certified lab first-draw sample; West, MS may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Possumneck-Carmack W/A whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.